USB SECURITY KEY FOR MAC UPDATE
macOS: An alert informs you that a software update is required to use this startup disk.Enter your administrator password, then click Unlock to complete the download.
If FileVault is enabled while your Mac is attempting to download updated integrity information, you're asked to enter a password to unlock the disk. This information is unique to your Mac, and it ensures that your Mac starts up from an OS that is trusted by Apple. If the OS is unknown or can't be verified as legitimate, your Mac connects to Apple to download the updated integrity information it needs to verify the OS. This is a level of security previously available only on iOS devices.ĭuring startup, your Mac verifies the integrity of the operating system (OS) on your startup disk to make sure that it's legitimate. Full Security is the default setting, offering the highest level of security.
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